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Mad Cow disease strain found to be more virulent than classical strain

An atypical prion strain of mad cow disease, also called bovine spongiform encephalopathy or BS, is more virulent than the classical strain, according to a researcher who spoke Nov. 14 at Kansas State University.

3 Dec 2008

Cancer stem-cell model tested by University of Michigan researchers

One of the most promising new ideas about the causes of cancer, known as the cancer stem-cell model, must be reassessed because it is based largely on evidence from a laboratory test that is surprisingly flawed when applied to some cancers, University of Michigan researchers have concluded.

3 Dec 2008

Light exposure therapy, dark sunglasses help night-shift workers

A new study finds the use of light exposure therapy, dark sunglasses and a strict sleep schedule can help night-shift workers create a "compromise circadian phase position," which may result in increased performance and alertness during night shifts while still allowing adequate nighttime sleep on days off.

3 Dec 2008

Robotic help for stroke patients

Research scientists using a novel, hand-operated robotic device and functional MRI (fMRI) have found that chronic stroke patients can be rehabilitated, according to a study presented today at the annual meeting of the Radiological Society of North America (RSNA).

3 Dec 2008

Natural killer T cells play important role in Lyme disease

A research team led by the La Jolla Institute for Allergy & Immunology and Albany Medical College has illuminated the important role of natural killer (NK) T cells in Lyme disease, demonstrating that the once little understood white blood cells are central to clearing the bacterial infection and reducing the intensity and duration of arthritis associated with Lyme disease.

3 Dec 2008

Genetic breakdown in Fanconi anemia may have link to HPV-associated cancer

A genetic malfunction that causes DNA instability in people with the blood disorder Fanconi anemia may put them at high risk for squamous cell carcinomas linked to human papillomavirus (HPV), according to a study posted online ahead of print by Oncogene.

3 Dec 2008

Gene therapy used to alleviate sickle cell disease pathology

Using a harmless virus to insert a corrective gene into mouse blood cells, scientists at St. Jude Children's Research Hospital have alleviated sickle cell disease pathology.

3 Dec 2008

New insights into cellular senescence

Scientists have identified a molecular cause behind the ravages of old age and in doing so have also shown how a natural process for fighting cancer in younger persons can actually promote cancer in older individuals.

3 Dec 2008

Broccoli compound, indole-3-carbinol targets key enzyme in late-stage cancer

An anti-cancer compound found in broccoli and cabbage works by lowering the activity of an enzyme associated with rapidly advancing breast cancer, according to a University of California, Berkeley, study appearing this week in the online early edition of the journal Proceedings of the National Academy of Sciences.

3 Dec 2008

Researchers develop human embryonic stem cell-based system for modeling ALS

Long thought of as mere bystanders, astrocytes are crucial for the survival and well-being of motor neurons, which control voluntary muscle movements.

3 Dec 2008

Discovery of a presbycusis related gene

Presbycusis, or age-related hearing loss, accounts for 30 percent of all hearing loss. So, why do some people lose their hearing as they get older but other people can still hear a pin drop?

3 Dec 2008

New technique provides closer look at DNA and mRNA

In a study in the advance online edition of Nature Structural and Molecular Biology, researchers from Albert Einstein College of Medicine describe a technique for looking more precisely at a fundamental step of a cell's life - a gene, DNA, being read into a message, mRNA.

3 Dec 2008

Lapatinib benefits women with HER2-positive breast cancer

Findings published in the December 1, 2008, issue of Clinical Cancer Research , a journal of the American Association for Cancer Research, show lapatinib benefits women with HER2-positive breast cancer, while women with HER2-negative breast cancer or those who express EGRF alone derive no incremental benefit.

3 Dec 2008

Smart materials to revolutionise surgical implants

A brand new process that could revolutionise the reliability and durability of surgical implants, such as hip and knee replacements, has today, 2 December 08, received recognition for its medical and commercial potential by achieving one of the world's most sought after accolades.

2 Dec 2008

Researchers find that when cells shut down they also spew proteins into their surrounding environment

Cells shut down and stop dividing when their DNA is damaged, in a process known as cellular senescence, so as to prevent damaged DNA from leading to unregulated cell division and therefore cancer.

1 Dec 2008

EGFR inhibitors show promise for obesity

Once-promising drugs that were abandoned in the fight against breast cancer still could be effective in obese patients, new research suggests.

1 Dec 2008

Scientists discover possible mechanism for chirality in biological molecules

The basic molecules that make up all living things have a predetermined chirality or "handedness," similar to the way people are right- or left-handed.

1 Dec 2008

New cell analysis platform developed - commercial partners sought

Sandia National Laboratories is seeking commercial partners to license or contribute to the continued development of a new lab-on-a-chip platform for high-throughput manipulation and interrogation of individual cells, one that enables quantitative analysis of cellular behaviors with unprecedented speed, resolution, sensitivity, and multiplexing.

1 Dec 2008

New study indicates smallpox vaccination effective for decades

Although naturally occurring smallpox was eradicated in 1977, there is concern that bioterrorists might obtain smallpox from a laboratory and release it into the population.

30 Nov 2008

Multitasking proteins driving cell behavior

A study describing how cells within blood vessel walls move en masse overturns an assumption common in the age of genomics - that the proteins driving cell behavior are doing so much multitasking that it would be near impossible to group them according to a few discrete functions.

30 Nov 2008